›› 2018, Vol. 49 ›› Issue (11): 86-90.

• 油品与添加剂 • 上一篇    下一篇

可生物降解润滑油添加剂哌嗪衍生物的合成及性能评定

刘艳丽,陈鹏,熊婷,姜佳伟,刘拥君   

  1. 湖南工程学院化学化工学院
  • 收稿日期:2018-03-26 修回日期:2018-05-16 出版日期:2018-11-12 发布日期:2018-11-29
  • 通讯作者: 刘艳丽 E-mail:15898581275@163.com
  • 基金资助:
    湖南省教育厅基金项目;湖南省大学生科技创新项目;湖南工程学院大学生科技创新项目

PREPARATION AND PROPERTIES OF BIODEGRADABLE LUBRICATING OIL ADDITIVE PIPERAZINE DERIVATIVES

  • Received:2018-03-26 Revised:2018-05-16 Online:2018-11-12 Published:2018-11-29

摘要: 选用六水合哌嗪为母体,二氯甲烷为溶剂,三乙胺为缚酸剂,正己胺、十二胺、氯乙酰氯为原料,合成新型可生物降解润滑油添加剂1,4-双(二硫代甲酸乙酰正己胺)哌嗪和1,4-双(二硫代甲酸乙酰十二胺)哌嗪;采用FT-IR,1HNMR,TG手段对合成产物进行结构表征及对产品热稳定性进行测试。以菜籽油为基础油,采用四球摩擦磨损试验机考察合成添加剂的抗磨性能,并对其进行可生物降解性测定。结果表明:合成产品与预测结构相同,热分解温度最低为305 ℃,与菜籽油的溶解度高达2.58%(质量分数),1,4-双(二硫代甲酸乙酰十二胺)哌嗪具有较好的抗磨性能,1,4-双(二硫代甲酸乙酰正己胺)哌嗪具有较好的减摩性能,两者均具有优异的可生物降解性能(BDI大于80%)。

关键词: 哌嗪衍生物, 润滑油添加剂, 缚酸剂, 可生物降解性

Abstract: In order to reduce the environmental pollution caused by oil, new biodegradable lubricating oil additives 1,4-bis (dithiocarbamoyl-n-hexylamine) piperazine (NP) and 1,4-bis (dithiocarbamate) piperazine (DP) were synthesized with piperazine (PP) as a precursor, dichloromethane as solvent, triethylamine as acid binding agent, n-hexylamine, dodecylamine and chloroacetyl chloride as raw materials. The structures and thermal stability of products were characterized by FT-IR, 1HNMR and TG techniques. Using rapeseed oil as lubricating base oil, the anti-wear performance and biodegradabilities, BDI index of additives were tested. The results showed that the thermal decomposition temperature is 305℃, and the solubility in rapeseed oil is better(up to 2.58%). The anti-wear performance of DP is better than NP, while the anti-friction performance of NP is better than DP. Both NP and DP have excellent biodegradability (BDI> 80%).

Key words: piperazine derivative, lubricating additive, acid binding agent, biodegradability